Evidence check: IgE Allergietest in the context of Fruchtbarkeit

IgE allergy tests detect immediate-type (Type I) allergies to pollen, foods, or insect venoms. A direct link between IgE-mediated allergies and fertility is not well established. Some observational studies suggest a possible association between allergies (e.g., hay fever) and prolonged time-to-pregnancy, but findings are inconsistent and effect sizes small. Mechanistically, inflammation or immune responses might affect implantation or sperm function, but this remains speculative. MyBody-X offers IgE tests as part of allergy panels, without specific fertility claims. The evidence for a clinically relevant role of IgE in fertility problems is weak and mostly based on association studies. Caveat: A positive IgE test does not automatically imply a cause for infertility. Comprehensive fertility workup is required. Test results should be discussed with a physician, especially before elimination diets or therapies. Evidence grade: unclear/marketing.